Small fixes
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monty@donna.mysql.com
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@ -1 +1 @@
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monty@tramp.mysql.fi
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monty@donna.mysql.com
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@ -581,7 +581,7 @@ Speed of queries that access or update data
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* Estimating performance:: Estimating query performance
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* SELECT speed:: Speed of @code{SELECT} queries
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* Where optimizations:: How MySQL optimizes @code{WHERE} clauses
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* LEFT JOIN optimization:: How MySQL optimizes @code{LEFT JOIN} and ${RIGHT JOIN}
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* LEFT JOIN optimization:: How MySQL optimizes @code{LEFT JOIN} and @code{RIGHT JOIN}
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* LIMIT optimization:: How MySQL optimizes @code{LIMIT}
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* Insert speed:: Speed of @code{INSERT} queries
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* Update speed:: Speed of @code{UPDATE} queries
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@ -30108,11 +30108,17 @@ clients connected to the @code{mysqld} server.
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If you need more connections than the default (100), then you should restart
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@code{mysqld} with a bigger value for the @code{max_connections} variable.
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Note that @code{mysqld} actually allows (@code{max_connections}+1) clients to connect.
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The last connection is reserved for a user with the @strong{process} privilege.
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By not giving this privilege to normal users (they shouldn't need this), an
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administrator with this privilege can login and use @code{SHOW PROCESSLIST}
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to find out what could be wrong. @xref{SHOW}.
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Note that @code{mysqld} actually allows (@code{max_connections}+1)
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clients to connect. The last connection is reserved for a user with the
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@strong{process} privilege. By not giving this privilege to normal
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users (they shouldn't need this), an administrator with this privilege
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can login and use @code{SHOW PROCESSLIST} to find out what could be
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wrong. @xref{SHOW}.
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The maximum number of connects @strong{MySQL} is depending on how good
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the thread library is on a given platform. Linux or Solaris should be
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able to support 500-1000 simultaneous connections, depending on how much
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RAM you have and what your clients are doing.
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@node Out of memory, Packet too large, Too many connections, Common errors
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@subsection @code{Out of memory} error
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@ -30547,6 +30553,10 @@ shell> export UMASK_DIR
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shell> /path/to/safe_mysqld &
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@end example
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In @strong{MySQL} 3.23.25 and above, @strong{MySQL} assumes that the
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value for @code{UMASK} and @code{UMASK_DIR} is in octal if it starts
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with a zero.
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@xref{Environment variables}.
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@node Not enough file handles, Using DATE, File permissions , Problems
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@ -36774,6 +36784,10 @@ though, so 3.23 is not released as a stable version yet.
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@appendixsubsec Changes in release 3.23.25
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@itemize @bullet
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@item
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Fixed that databasename works as second argument to @code{mysqlhotcopy}.
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@item
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@code{UMASK} and @code{UMASK_DIR} can now be specified in octal.
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@item
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Added @code{RIGHT JOIN}. This makes @code{RIGHT} a reserved word.
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@item
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Added @code{@@@@IDENTITY} as a synonym for @code{LAST_INSERT_ID()}.
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@ -41578,6 +41592,10 @@ If @code{mysqld} hangs you can try to use some system tools like
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@code{strace} or @code{/usr/proc/bin/pstack} to examine where
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@code{mysqld} has hung.
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@example
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strace /tmp/log libexec/mysqld
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@end example
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If @code{mysqld} starts to eat up CPU or memory or if it ``hangs'', you
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can use @code{mysqladmin processlist status} to find out if someone is
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executing a query that takes a long time. It may be a good idea to
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@ -47,6 +47,19 @@ static my_bool win32_init_tcp_ip();
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#endif
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static my_bool my_init_done=0;
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ulong atoi_octal(const char *str)
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{
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long int tmp;
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while (*str && isspace(*str))
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str++;
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str2int(str,
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(*str == '0' ? 8 : 10), /* Octalt or decimalt */
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0, INT_MAX, &tmp);
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return (ulong) tmp;
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}
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/* Init my_sys functions and my_sys variabels */
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void my_init(void)
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@ -73,10 +86,12 @@ void my_init(void)
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if ((home_dir=getenv("HOME")) != 0)
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home_dir=intern_filename(home_dir_buff,home_dir);
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#ifndef VMS
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/* Default creation of new files */
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if ((str=getenv("UMASK")) != 0)
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my_umask=atoi(str) | 0600; /* Default creation of new files */
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my_umask=(int) (atoi_octal(str) | 0600);
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/* Default creation of new dir's */
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if ((str=getenv("UMASK_DIR")) != 0)
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my_umask_dir=atoi(str) | 0700; /* Default creation of new dir's */
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my_umask_dir=(int) (atoi_octal(str) | 0700);
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#endif
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#ifdef VMS
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init_ctype(); /* Stupid linker don't link _ctype.c */
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@ -25,11 +25,11 @@ WARNING: THIS IS VERY MUCH A FIRST-CUT ALPHA. Comments/patches welcome.
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# Documentation continued at end of file
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my $VERSION = "1.6";
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my $VERSION = "1.7";
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my $OPTIONS = <<"_OPTIONS";
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Usage: $0 db_name new_db_name
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Usage: $0 db_name [new_db_name | directory]
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-?, --help display this helpscreen and exit
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-u, --user=# user for database login if not current user
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@ -126,7 +126,9 @@ my $dsn = ";host=localhost";
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$dsn .= ";port=$opt{port}" if $opt{port};
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$dsn .= ";mysql_socket=$opt{socket}" if $opt{socket};
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my $dbh = DBI->connect("dbi:mysql:$dsn", $opt{user}, $opt{password}, {
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my $dbh = DBI->connect("dbi:mysql:$dsn;mysql_read_default_group=mysqlhotcopy",
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$opt{user}, $opt{password},
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{
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RaiseError => 1,
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PrintError => 0,
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AutoCommit => 1,
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@ -143,20 +145,23 @@ if ( $opt{checkpoint} ) {
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}
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# --- get variables from database ---
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my $sth_vars = $dbh->prepare("show variables");
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my $sth_vars = $dbh->prepare("show variables like 'datadir'");
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$sth_vars->execute;
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while ( my ($var,$value) = $sth_vars->fetchrow_array ) {
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$mysqld_vars{ $var } = $value;
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}
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my $datadir = $mysqld_vars{datadir}
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my $datadir = $mysqld_vars{'datadir'}
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|| die "datadir not in mysqld variables";
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$datadir =~ s:/$::;
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# --- get target path ---
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my $tgt_dirname;
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if ($tgt_name =~ m:^\w+$:) {
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my ($tgt_dirname, $to_other_database);
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$to_other_database=0;
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if ($tgt_name =~ m:^\w+$: && @db_desc <= 1)
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{
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$tgt_dirname = "$datadir/$tgt_name";
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$to_other_database=1;
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}
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elsif ($tgt_name =~ m:/: || $tgt_name eq '.') {
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$tgt_dirname = $tgt_name;
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@ -209,6 +214,7 @@ foreach my $rdb ( @db_desc ) {
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$hc_locks .= ", " if ( length $hc_locks && @hc_tables );
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$hc_locks .= join ", ", map { "$_ READ" } @hc_tables;
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$hc_tables .= ", " if ( length $hc_tables && @hc_tables );
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$hc_tables .= join ", ", @hc_tables;
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$num_tables += scalar @hc_tables;
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@ -223,19 +229,30 @@ if (length $tgt_name ) {
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# explicit destination directory specified
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# GNU `cp -r` error message
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die "copying multiple databases, but last argument ($tgt_name) is not a directory\n"
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if ( @db_desc > 1 && !(-e $tgt_name && -d $tgt_name ) );
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die "copying multiple databases, but last argument ($tgt_dirname) is not a directory\n"
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if ( @db_desc > 1 && !(-e $tgt_dirname && -d $tgt_dirname ) );
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foreach my $rdb ( @db_desc ) {
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$rdb->{target} = "$tgt_name/$rdb->{src}";
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if ($to_other_database)
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{
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foreach my $rdb ( @db_desc ) {
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$rdb->{target} = "$tgt_dirname";
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}
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}
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}
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else
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{
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die "Last argument ($tgt_dirname) is not a directory\n"
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if (!(-e $tgt_dirname && -d $tgt_dirname ) );
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foreach my $rdb ( @db_desc ) {
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$rdb->{target} = "$tgt_dirname/$rdb->{src}";
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}
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}
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}
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else {
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die "Error: expected \$opt{suffix} to exist" unless ( exists $opt{suffix} );
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foreach my $rdb ( @db_desc ) {
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$rdb->{target} = "$datadir/$rdb->{src}$opt{suffix}";
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}
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die "Error: expected \$opt{suffix} to exist" unless ( exists $opt{suffix} );
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foreach my $rdb ( @db_desc ) {
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$rdb->{target} = "$datadir/$rdb->{src}$opt{suffix}";
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}
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}
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print Dumper( \@db_desc ) if ( $opt{debug} );
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@ -571,6 +588,9 @@ where ":" delimits the subsets, the /^foo_/ indicates all tables
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with names begining with "foo_" and the "+" indicates all tables
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not copied by the previous subsets.
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newdb is either another not existing database or a full path to a directory
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where we can create a directory 'db'
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Add option to lock each table in turn for people who don't need
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cross-table integrity.
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@ -194,5 +194,4 @@
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"Fick nätverksfel vid skrivning till master",
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"Hittar inte ett FULLTEXT index i kolumnlistan",
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"Kan inte exekvera kommandot emedan du har en låst tabell eller an aktiv transaktion",
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#ER_UNKNOWN_SYSTEM_VARIABLE
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"Okänd system variabel '%-.64'",
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